The second billing method is through pre-paid garbage bags.

第二种，通过预付费垃圾袋缴费。

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Thee second billing method is through pre-paid garbage bags.

第二种，通过预付费垃圾袋缴费。

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In order to solve the problem, this paper proposed SLA-based next generation network billing method.

为了解决该问题，提出了一种基于SLA(服务等级协议)的下一代网络计费方法。

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Direct Operator Billing from MACH will enable Skype to bring a vital alternative payment method to these channels: Skype users will be able to charge their Skype credit to their mobile phone bill or pre-paid account, and enjoy the frictionless user experience gained from this payment method.

ENGADGET: Skype strikes deal with Mach to expand direct carrier billing for credit purchases